Apr 7 – 10, 2019
Imperial College London
Europe/London timezone

Noise Rejection Method
 Using Spherical Harmonic Decomposition

Apr 8, 2019, 3:00 PM
15m
Huxley 340 (Imperial College London)

Huxley 340

Imperial College London

Speaker

Elena Massera

Description

The rapid analysis of gravitational-wave data for burst-like signals is not trivial for many reasons, such as the non-Gaussian non-stationary nature of the background noise in the detectors and the lack of information about potential sources such as exhaustive waveform models or sky position. One active research area is based on the use of X-SphRad (X-Pipeline Spherical Radiometer), a software package designed for performing autonomous searches for un-modeled gravitational-wave bursts. X-SphRad has an approach based on spherical radiometry, that transforms time series data streams into the spherical harmonic domain. We will describe the harmonic coefficients potential in discriminating gravitational wave candidates from background noise, and overview a noise rejection method. We are testing this method on the data given by the LIGO-VIRGO collaboration.

Presentation materials